<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../../js/vue.js"></script>
</head>
<body>
<div id="div_id">
    <p>{{message}}</p>
    <input v-model="message"/>
</div>

<script>
    const app=new Vue({
        el:"#div_id",
        data:{
            message:"12345"
        }
    })

</script>
</body>
</html>